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Arizona Diamondbacks pitcher Bronson Arroyo, right, wipes his face as he talks with catcher Miguel Montero during the fourth inning of a baseball game against the New York Mets on Tuesday, April 15, 2014, in Phoenix. (AP Photo/Matt York)

The general manager of a last place baseball team sounded like what you would expect a general manager of a last place baseball team to sound like this early in the season.

Dejected.

The Arizona Diamondbacks are 4-13 -- 1-10 at home -- and are in the midst of a season-long five-game losing streak with the possibility of having a winless homestand staring them straight in the face.

"It's been tough," Towers told Doug & Wolf Wednesday morning on Arizona Sports 98.7 FM. "We didn't see this coming. This is my 32nd year in baseball, I've never seen anything like it. It's the perfect storm. I've had rotations that have struggled at times but to have all five at the same time, it's difficult.

The starters have a league-worst 7.82 ERA and only have two quality starts in the 17 games they've played.

The team has changed up the rotation by replacing Randall Delgado with Josh Collmenter and will again on Saturday when Mike Bolsinger makes his first Major League start in place of Trevor Cahill. He debuted on Monday, allowing two runs on six hits in three innings in relief.